The

Canon Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the material accepted as officially written by an author or an ascribed author * Literary canon, an accepted body of works considered as high culture ** Western canon, th ...

EOS In ancient Greek mythology and Ancient Greek religion, religion, Eos (; Ionic Greek, Ionic and Homeric Greek ''Ēṓs'', Attic Greek, Attic ''Héōs'', "dawn", or ; Aeolic Greek, Aeolic ''Aúōs'', Doric Greek, Doric ''Āṓs'') is the go ...

40D is a 10.1-

megapixel In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a Raster graphics, raster image, or the smallest addressable element in a dot matrix display device. In most digital display devices, p ...

semi-professional

digital single-lens reflex camera A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the sensor. The reflex des ...

. It was initially announced on 20 August 2007 and was released at the end of that month. It is the successor of the

Canon EOS 30D The Canon Inc., Canon Canon EOS, EOS 30D is an 8.2-megapixel semi-professional digital single-lens reflex camera, initially announced on February 21, 2006. It is the successor of the Canon EOS 20D, and is succeeded by the Canon EOS 40D, EOS 40D. ...

, and is succeeded by the EOS 50D. It can accept EF and EF-S lenses. Like its predecessor, it uses an

APS-C Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 30.15 mm field d ...

sized image sensor, resulting in a 1.6x

field of view The field of view (FOV) is the angle, angular extent of the observable world that is visual perception, seen at any given moment. In the case of optical instruments or sensors, it is a solid angle through which a detector is sensitive to elec ...

crop factor In digital photography, the crop factor, format factor, or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital ...

Improvements

Changes over the 30D include a higher-resolution sensor (10.1 megapixel instead of 8.2). The sensor also has better noise control than previous models. The 40D has a larger memory buffer so more pictures can be taken in succession without a slow down in frame rate. Frames per second has been increased from 5 to 6.5. The 40D adds a new format, Canon's sRAW, which is a smaller RAW image for smaller prints and reduced file sizes. The 40D's RAW format is 14-bit instead of the 12-bit of the 30D. The camera uses the new DIGIC III image processor, which was first used in the Canon EOS-1D Mark III, introduced earlier that year. Canon's DIGIC III processor delivers responsive operation, improved color rendering and near-instant start-up time. A new sensor cleaning system has been introduced. It can also use the Canon Wireless File Transmitter WFT-E3/E3A. The 40D has a larger screen (3", of the same resolution of 320 × 240 pixel = 76,800 pixels) than the 30D (2.5"). There is also a new menu for external and internal flash control, including second curtain sync. Other additions on the Canon 40D include interchangeable focusing screens, an AF-ON button, the EOS Integrated Cleaning System for sensor dust reduction, rubber strips around the battery and CF doors for improved weather sealing and three new optional accessories: an IS version of the 18-55mm kit lens; a new backward-compatible, live view mode, and a weather-sealed

battery grip A battery grip (aka battery pack) is an accessory for an SLR/ DSLR (and occasionally other cameras), which allows the camera to hold multiple batteries to extend the battery life of the camera, and adds a vertical grip with an extra shutter relea ...

Overview and features

The 40D has many similar characteristics to its predecessors the 20D and 30D, but also many differences. This includes various shooting modes, ability to change ISO and white balance, a pop-up flash unit, an LCD screen of 3.0 inches (an upgrade from the previous model, the

with a screen of only 2.5 inches), and a rugged magnesium alloy protective inner-shell, which both the Canon 30D and 40D have. The newest feature to the 40D is ''Live View'' (previously used on the EOS 20Da), allowing photographers to use the LCD screen as their viewfinder. It is very useful for taking pictures low to the ground, when the eye cannot reach the viewfinder. The shutter noise is quieter in this mode as well. * 10.1

APS-C

CMOS sensor An active-pixel sensor (APS) is an image sensor, which was invented by Peter J.W. Noble in 1968, where each pixel sensor unit cell has a photodetector (typically a pinned photodiode) and one or more active transistors. In a metal–oxide–semic ...

* DIGIC III processor * 3.0 inch LCD Monitor * 14-bit Processor * Live View Mode * Wide 9-point AF (all points are cross-type with the centre point having an additional f/2.8 sensitive cross-type sensor placed diagonally) * Selectable AF and metering modes * Built in Flash *

Integrated Cleaning System *

ISO The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Me ...

100–1600 (3200 with custom function) * Continuous Drive up to 6.5 frame/s (75 images (

JPEG JPEG ( , short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degr ...

), 17 images ( RAW)) * Canon EF/ EF-S Lenses * Canon EX Speedlites *

PAL Phase Alternating Line (PAL) is a color encoding system for analog television. It was one of three major analogue colour television standards, the others being NTSC and SECAM. In most countries it was broadcast at 625 lines, 50 fields (25 ...

NTSC NTSC (from National Television System Committee) is the first American standard for analog television, published and adopted in 1941. In 1961, it was assigned the designation System M. It is also known as EIA standard 170. In 1953, a second ...

video output *

File Formats A file format is a Computer standard, standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary format, pr ...

include: JPEG, RAW, sRAW (both RAW formats are 14-bit) * RAW & JPEG simultaneous recording *

USB Universal Serial Bus (USB) is an industry standard, developed by USB Implementers Forum (USB-IF), for digital data transmission and power delivery between many types of electronics. It specifies the architecture, in particular the physical ...

2.0 computer interface * BP-511/BP-511A or BP-512/BP-514 Battery Types (BP-511A battery supplied) * Tough inner metal (magnesium alloy) shell * Approx Weight 0.822 kg

Firmware and software

, the latest firmware is 1.1.1, released 20 January 2009. The firmware updates have fixed some bugs, and made minor changes in operation. Canon released its DPP 3.1 RAW converter alongside the 40D. Initially,

Adobe Lightroom Adobe Photoshop Lightroom, often shortened to Lightroom, is an Image organizer, image organization and image editing, editing application developed by Adobe Inc., Adobe and licensed as part of the Adobe Creative Cloud, Creative Cloud suite. It i ...

did not have official support for the 40D though RAW and JPEGs from the camera did still work. Official support for the 40D as well as the 1Ds Mark III was added with Lightroom 1.3, available as a free update from Adobe.

References

External links

Canon EOS 40D Review, Phil Askey, October 2007
at Digital Photography Review
Steve's Digicams – Canon EOS 40D – Hands on Review (Archived April 19, 2010)

Canon USA Support - EOS 40D

{{DEFAULTSORT:Canon Eos 40d 40D Live-preview digital cameras Cameras introduced in 2007